Record Display for the EPA National Library Catalog

RECORD NUMBER: 5 OF 11

OLS Field Name OLS Field Data
Main Title NO/Char Reactions at Pulverized Coal Flame Conditions.
Author Levy, J. M. ; Chan, L. K. ; Sarofim, A. F. ; Beer, J. M. ;
CORP Author Massachusetts Inst. of Tech., Cambridge.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Publisher c1981
Year Published 1981
Report Number EPA-R-805552; EPA/600/J-91/284;
Stock Number PB92-121417
Additional Subjects Coal combustion ; Nitrogen oxides ; Air pollution ; Pulverized fuels ; Flames ; Stationary sources ; Reaction kinetics ; Surface chemistry ; Chars ; Reprints ;
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB92-121417 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 02/24/1992
Collation 12p
Abstract
The paper discusses nitrogen oxide (NO)/char reactions at pulverized-coal flame conditions. The effective rate of the NO/char reaction, measured over the temperature range 1250 to 1750 K, was found to be retarded by water vapor and enhanced by carbon monoxide (CO) by amounts that decrease with increasing temperature. This is consistent with a hypotehsis that the NO/carbon (C) reaction is retarded by the formation of a chemisorbed layer that can be removed by reaction with CO. Support for the hypothesis is provided by transient experiments which show that, at low temperatures, NO reacts with C to form nitrogen (N2) and a chemisorbed oxygen (O2) layer, and that the chemisorbed O2 decomposes at higher temperatures to form CO or reacts with CO to form carbon dioxide (CO2).